<template>
  <el-row class="home" :gutter="20">
    <el-col :span="8" style="margin-top: 20px">
      <el-card shadow="hover">
        <div class="user">
          <img src="../../assets/images/user.png" alt="" />
          <div class="user-info">
            <p class="name">Admin</p>
            <p class="role">超级管理员</p>
          </div>
        </div>
        <div class="login-info">
          <p>上次登录时间：<span>2022-7-11</span></p>
          <p>上次登录地点：<span>北京</span></p>
        </div>
      </el-card>

      <el-card shadow="hover" style="margin-top: 20px" height="450px">
        <el-table :data="tableData">
          <el-table-column
            v-for="(val, key) in tableLabel"
            :key="key"
            :prop="key"
            :label="val"
          >
          </el-table-column>
        </el-table>
      </el-card>
    </el-col>
    <el-col :span="16" style="margin-top: 20px">
      <div class="num">
        <el-card
          :body-style="{ display: 'flex', padding: 0 }"
          v-for="item in countData"
          :key="item.name"
        >
          <component
            class="icons"
            :is="item.icon"
            :style="{ background: item.color }"
          ></component>
          <div class="detail">
            <p class="num">￥{{ item.value }}</p>
            <p class="txt">{{ item.name }}</p>
          </div>
        </el-card>
      </div>

      <el-card style="height: 280px">
        <div ref="echarts" style="height: 280px"></div>
      </el-card>
      <div class="graph">
        <el-card style="height: 260px"
          ><div ref="user-echarts" style="height: 240px"></div
        ></el-card>
        <el-card style="height: 260px"
          ><div ref="video-echarts" style="height: 240px"></div
        ></el-card>
      </div>
    </el-col>
  </el-row>
</template>
<script>
import { getCurrentInstance, onMounted, ref } from 'vue'
import axios from 'axios'
import * as echarts from 'echarts'
export default {
  setup() {
    const { proxy } = getCurrentInstance()
    let tableData = ref([])
    let countData = ref([])

    const tableLabel = {
      name: '课程',
      todayBuy: '今日购买',
      monthBuy: '本月购买',
      totalBuy: '总购买'
    }
    const getTableList = async () => {
      // 本地mock模拟
      // await axios.get("/home/getData").then((res) => {
      //   // console.log(res.data.data)
      //   tableData.value = res.data.data
      // })

      // 线上fastmock模拟
      // await axios.get("https://www.fastmock.site/mock/cf68dd3c6361f9ecb4ed82886d890e14/api/home/getTableData").then((res) => {
      //   // 二次封装axios
      //   //console.log(res)
      //   if (res.data.code == 200) {
      //     tableData.value = res.data.data
      //   }
      // })

      // 二次封装axios
      let res = await proxy.$api.getTableData()
      // console.log(res)
      tableData.value = res
    }
    // 获取首页count数据
    const getCountData = async () => {
      let res = await proxy.$api.getCountData()
      countData.value = res
    }

    onMounted(() => {
      getTableList()
      // 获取count数据
      getCountData()
      // 获取Echarts表格数据
      getEchartsData()
    })
    // 关于echarts 表格的渲染部分，渲染的配置项
    const xOptions = reactive({
      legend: {
        // 图例文字颜色
        textStyle: {
          color: '#333'
        }
      },
      grid: {
        left: '20%'
      },
      // 提示框
      tooltip: {
        trigger: 'axis'
      },
      xAxis: {
        type: 'category', // 类目轴
        data: [],
        axisLine: {
          lineStyle: {
            color: '#17b3a3'
          }
        },
        axisLabel: {
          interval: 0,
          color: '#333'
        }
      },
      yAxis: [
        {
          type: 'value',
          axisLine: {
            lineStyle: {
              color: '#17b3a3'
            }
          }
        }
      ],
      color: ['#2ec7c9', '#b6a2de', '#5ab1ef', '#ffb980', '#d87a80', '#8d98b3'],
      series: []
    })

    const peiOptions = reactive({
      tooltip: {
        trigger: 'item'
      },
      color: [
        '#0f78f4',
        '#dd536b',
        '#9462e5',
        '#a6a6a6',
        '#e1bb22',
        '#39c362',
        '#3ed1cf'
      ],
      series: [],
    })

    const orderData = reactive({
      xData: [],
      series: []
    })

    const userData = reactive({
      xData: [],
      series: []
    })

    const videoData = reactive({
      series: []
    })

    // 获取数据
    const getEchartsData = async () => {
      const result = await proxy.$api.getEchartsData()
      // console.log(result)
      const res = result.orderData
      const userRes = result.userData
      const videoRes = result.videoData
      orderData.xData = res.date
      const keyArray = Object.keys(res.data[0])
      const series = []
      keyArray.forEach((key) => {
        series.push({
          name: key,
          data: res.data.map((item) => item[key]),
          type: 'line'
        })
      })
      orderData.series = series
      xOptions.xAxis.data = orderData.xData
      xOptions.series = orderData.series
      // userData进行渲染
      let hEcharts = echarts.init(proxy.$refs['echarts'])
      // 让hEcharts进行setOption渲染
      hEcharts.setOption(xOptions)

      // 柱状图进行渲染的过程
      userData.xData = userRes.map((item) => item.date)
      userData.series = [
        {
          name: '新增用户',
          data: userRes.map((item) => item.new),
          type: 'bar'
        },
        {
          name: '活跃用户',
          data: userRes.map((item) => item.active),
          type: 'bar'
        }
      ]
      xOptions.xAxis.data = userData.xData
      xOptions.series = userData.series
      // userData进行渲染
      let uEcharts = echarts.init(proxy.$refs['user-echarts'])
      // 让uEcharts进行setOption渲染
      uEcharts.setOption(xOptions)

      // 饼状图
      videoData.series = [
        {
          data: videoRes,
          type: 'pie'
        }
      ]
      peiOptions.series = videoData.series
      let vEcharts = echarts.init(proxy.$refs['video-echarts'])
      vEcharts.setOption(peiOptions)

    }

    return { tableData, tableLabel, countData }
  }
}
</script>

<style lang="less" scoped>
.home {
  .user {
    display: flex;
    align-items: center;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid #ccc;

    img {
      width: 150px;
      height: 150px;
      border-radius: 50%;
      margin-right: 40px;
    }
  }

  .login-info {
    p {
      line-height: 30px;
      font-size: 14px;
      color: #999;

      span {
        color: #666;
        margin-left: 60px;
      }
    }
  }
  .num {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    .el-card {
      width: 32%;
      margin-bottom: 20px;
    }
    .icons {
      width: 80px;
      height: 80px;
      font-size: 30px;
      text-align: center;
      line-height: 80px;
      color: #fff;
    }
    .detail {
      margin-left: 15px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      .num {
        font-size: 30px;
        margin-bottom: 10px;
      }
      .txt {
        font-size: 14px;
        text-align: center;
        color: #999;
      }
    }
  }
  .graph{
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    .el-card{
      width: 48.5%;
    }
  }
}
</style>
